Trying to ensure there are no incompatibility issues while adding two 4 GB DIMMs with existing 2 GB DIMMs on XPS 8300 desktop. Should I get low-density RAM? Or It does not matter if I get high-density RAM? I do not know what RAM density the existing XPS desktop came with. The manual says to use 1333 MHz DDR3 non-ECC memory only. The following shows up in the configuration for the memory:
|317-5786||8GB DDR3 SDRAM at 1333MHz - 4x 2GB|
|1N7HK||DUAL IN-LINE MEMORY MODULE, 2G, 1333, 128X64, 8, 240, 1RX8|
It is best to stick wit the memory that the Computer manufacturer installed in the system. Below is the memory information for your system.
|Type||DDR3 Memory (Non-ECC only) 1333MHz|
|Memory capacities||1 GB, 2GB, and 4 GB|
|Minimum memory||2 GB|
The XPS™ 8300 system uses 1333 MHz DDR3 unbuffered SDRAM. DDR3 SDRAM or double-data-rate three synchronous dynamic random access memory is a random access memory technology. It is a part of the SDRAM family of technologies, which is one of many DRAM (dynamic random access memory) implementations, and is an evolutionary improvement over its predecessor, DDR2 SDRAM.
Its primary benefit is the ability to run its I/O bus at four times the speed of the memory cells it contains, thus enabling faster bus speeds and higher peak throughputs than earlier technologies. This is achieved at the cost of higher latency. Also, the DDR3 standard allows for chip capacities of 512 Megabit to 8 Gigabit, effectively enabling memory modules of maximum 16 Gigabit in size.
DDR3 memory comes with a promise of a power consumption reduction of 30% compared to current commercial DDR2 modules due to DDR3’s 1.5 V supply voltage, compared to DDR2’s 1.8 V or DDR’s 2.5 V. This supply voltage works well with the 90 nm fabrication technology used for most DDR3 chips. Some manufacturers further propose to use "dual-gate" transistors to reduce leakage of current.
The main benefit of DDR3 comes from the higher bandwidth made possible by DDR3’s 8 bit deep prefetch buffer, whereas DDR2’s is 4 bits, and DDR’s is 2 bits deep.
Theoretically, these modules could transfer data at the effective clock rate of 800-1600 MHz (using both edges of a 400-800 MHz I/O clock), compared to DDR2’s current range of effective 400-800 MHz (200-400 MHz clock) or DDR’s range of 200-400 MHz (100-200 MHz). To date, such bandwidth requirements have been mainly found in the graphics market, where fast transfer of information between frame buffers is required.
The XPS™ 8300 supports the following memory mode operations with performance depending on configuration:
DDR3 SDRAM Components: